Leiser Kombi on long distances

Hello, I’m currently driving a Ford Focus MK3 limousine. Since I have a child, I realize that I need a bigger car. I drive about 15000 km per year, mainly long distances (300-1000 km at a time), therefore I need a car that is quieter than the Focus. If I’m driving with my wife, I can drive max 160 kmh, so performance doesn’t matter. It would be great if the car were easy to park. I almost decided on V60, but the trunk is d definitely too small. Audi A4 B8 is supposedly too loud from 140kmh Do you have better ideas? Budget max 20k. Gasoline.